๐Ÿ“ฎ Crows Nest postcode: 2065

Flood Risk in Crows Nest, QLD: 2026 Assessment

Crows Nest, Queenslandยท North Sydneyยท 2065
Crows Nest faces a moderate risk of flooding, primarily from heavy rainfall events and potential stormwater runoff. The area's topography and existing drainage infrastructure contribute to this risk.Updated 21 Mar 2026

Flood Risk Score

6.0/10

Crows Nest faces a moderate risk of flooding, primarily from heavy rainfall events and potential stormwater runoff. The area's topography and existing drainage infrastructure contribute to this risk.

Key Facts

Flood Risk
Crows Nest faces a moderate risk of flooding, primarily from heavy rainfall events and potential stormwater runoff. The area's topography and existing drainage infrastructure contribute to this risk.
Trend
stable
Suburb
Crows Nest, QLD
Overall Risk
Medium
Postcode
4355
Highest high-risk exposure
15.7% of land (bushfire)

Flood Risk Analysis

Crows Nest, located in Queensland, has a notable flood risk profile based on available data including proximity to waterways, elevation, and historical flood events. The Bureau of Meteorology (BOM) maintains river height and flood warning data for catchments across Queensland.

Localized flooding can occur during intense rainfall events, particularly in low-lying areas.

Crows Nest faces a moderate risk of flooding, primarily from heavy rainfall events and potential stormwater runoff. The area's topography and existing drainage infrastructure contribute to this risk.

For a comprehensive property-specific flood assessment including address-level elevation data, flood overlay mapping, and insurance cost estimates, use the ClimateNest full analysis tool. General suburb data cannot replace a site-specific evaluation.

Crows Nest sits within ClimateNest's suburb-level hazard model for flood risk. 9.3% of the suburb's land area is mapped in high-risk flood zones and 64.4% in moderate-risk zones, based on the national hazard overlay. Exposure at this scale varies street by street, which is why an address-level check matters before you buy or insure a specific property in Crows Nest.

Crows Nest (postcode 4355) is tracked in ClimateNest's suburb hazard model, which maps the share of the suburb's land exposed to each hazard at high and moderate levels. The suburb's highest high-risk exposures are bushfire (15.7% of land in high-risk zones), surface flood (14.6% of land in high-risk zones), riverine flood (9.3% of land in high-risk zones). Exposure is not uniform across Crows Nest โ€” individual properties can sit well above or below these averages, so an address-level check is recommended before buying, selling or insuring.

Local Hazard Evidence

Nearest WaterwaySydney Harbour
Elevation Range30-80 meters
Flood Zone ClassificationPotentially affected by stormwater runoff

Historical Events

2022
Moderate

Heavy rainfall caused localized flooding in parts of Crows Nest, affecting some businesses and residential areas.

Adaptation & Mitigation Actions

Implement urban greening initiatives

Near-term

Increase tree canopy cover and green spaces to reduce the urban heat island effect and provide shade during heatwaves.

Est. cost: Medium

Upgrade stormwater drainage infrastructure

Near-term

Improve drainage systems to manage increased rainfall and reduce the risk of localized flooding.

Est. cost: High

Develop a heatwave response plan

Immediate

Create a plan to protect vulnerable residents during heatwaves, including cooling centers and community outreach programs.

Est. cost: Low

Promote water-sensitive urban design

Long-term

Encourage the use of permeable pavements and rainwater harvesting to reduce stormwater runoff and improve water conservation.

Est. cost: Medium

Council & Emergency Services

North Sydney Council
Emergency Services

Data last updated: 21 March 2026

Explore Crows Nest Risk Reports

Frequently Asked Questions

Is Crows Nest at risk of flooding?

Based on available data, Crows Nest has a notable flood risk profile. Flood risk varies by address โ€” check your specific property for precise flood zone mapping and elevation data with ClimateNest.

What flood insurance costs can I expect in Crows Nest?

Insurance costs for flood cover in Crows Nest depend on the property's flood zone classification, elevation, and proximity to waterways. ClimateNest provides address-level insurance cost estimates based on your property's specific hazard exposure.

Does flood risk affect property values in Crows Nest?

Yes, flood risk can affect property values in Crows Nest. Properties in mapped flood zones may experience lower buyer demand, reduced valuations, and higher insurance costs. Lenders increasingly assess flood exposure as part of mortgage risk evaluation.

How does elevation affect flood risk in Crows Nest?

Elevation is a critical factor in flood risk. Properties at higher elevations within Crows Nest typically have lower flood exposure than those near waterways or in low-lying areas. Address-level elevation data combined with BOM flood mapping provides the most accurate picture.

What share of Crows Nest is exposed to high bushfire risk?

ClimateNest's hazard overlay maps 15.7% of Crows Nest in high-risk zones for bushfire, with a further 62.1% in moderate-risk zones. Suburb-level exposure is not uniform โ€” individual properties can differ from these averages, so an address-level check is recommended.

Is Crows Nest Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Crows Nest, Queensland, covering flood, bushfire, sea level rise and more.

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What A$69 could save you from

$7.2B
2022 insured disaster losses*
$300B+
climate risk to property by 2050*
30-120%
insurance premium increases in high-risk areas*

*Industry sources: ICA, APRA, RBA

Full report from A$69 ยท Australian addresses only ยท 8 hazard scores ยท Insurance trajectory ยท 2030 & 2050 projections